What are disadvantages of phenolic pistons?

What will be an ideal response?


They have a tendency to wear faster and score more easily than steel pistons. Early designs also tended to stick in their bores because of caliper bore varnish and corrosion.

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To lower and narrow a valve seat that has been cut at a 45-degree angle, use a cutter or stone of what angle?

A) 45 degrees B) 15 degrees C) 60 degrees D) 30 degrees

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Logic structures supported by shell scripts include: sequential logic, decision logic, looping logic, and ____________________ logic.

Fill in the blank(s) with the appropriate word(s).

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Compare the placings of market and breeding animals. Be sure to touch on the corresponding debate.

What will be an ideal response?

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The two large classes of metering devices are:

A) Fixed restrictions and thermostatic expansion valves. B) Fixed restrictions and broken restrictions. C) Floats and valves. D) Hand valves and automatic valves.

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